llvm-6502/lib/Target/X86/X86.td
2006-10-06 09:17:41 +00:00

144 lines
6.2 KiB
C++

//===- X86.td - Target definition file for the Intel X86 arch ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file was developed by the LLVM research group and is distributed under
// the University of Illinois Open Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is a target description file for the Intel i386 architecture, refered to
// here as the "X86" architecture.
//
//===----------------------------------------------------------------------===//
// Get the target-independent interfaces which we are implementing...
//
include "../Target.td"
//===----------------------------------------------------------------------===//
// X86 Subtarget features.
//
def Feature64Bit : SubtargetFeature<"64bit", "HasX86_64", "true",
"Support 64-bit instructions">;
def FeatureMMX : SubtargetFeature<"mmx","X86SSELevel", "MMX",
"Enable MMX instructions">;
def FeatureSSE1 : SubtargetFeature<"sse", "X86SSELevel", "SSE1",
"Enable SSE instructions">;
def FeatureSSE2 : SubtargetFeature<"sse2", "X86SSELevel", "SSE2",
"Enable SSE2 instructions">;
def FeatureSSE3 : SubtargetFeature<"sse3", "X86SSELevel", "SSE3",
"Enable SSE3 instructions">;
def Feature3DNow : SubtargetFeature<"3dnow", "X863DNowLevel", "ThreeDNow",
"Enable 3DNow! instructions">;
def Feature3DNowA : SubtargetFeature<"3dnowa", "X863DNowLevel", "ThreeDNowA",
"Enable 3DNow! Athlon instructions">;
//===----------------------------------------------------------------------===//
// X86 processors supported.
//===----------------------------------------------------------------------===//
class Proc<string Name, list<SubtargetFeature> Features>
: Processor<Name, NoItineraries, Features>;
def : Proc<"generic", []>;
def : Proc<"i386", []>;
def : Proc<"i486", []>;
def : Proc<"pentium", []>;
def : Proc<"pentium-mmx", [FeatureMMX]>;
def : Proc<"i686", []>;
def : Proc<"pentiumpro", []>;
def : Proc<"pentium2", [FeatureMMX]>;
def : Proc<"pentium3", [FeatureMMX, FeatureSSE1]>;
def : Proc<"pentium-m", [FeatureMMX, FeatureSSE1, FeatureSSE2]>;
def : Proc<"pentium4", [FeatureMMX, FeatureSSE1, FeatureSSE2]>;
def : Proc<"x86-64", [FeatureMMX, FeatureSSE1, FeatureSSE2,
Feature64Bit]>;
def : Proc<"yonah", [FeatureMMX, FeatureSSE1, FeatureSSE2,
FeatureSSE3]>;
def : Proc<"prescott", [FeatureMMX, FeatureSSE1, FeatureSSE2,
FeatureSSE3]>;
def : Proc<"nocona", [FeatureMMX, FeatureSSE1, FeatureSSE2,
FeatureSSE3, Feature64Bit]>;
def : Proc<"core2", [FeatureMMX, FeatureSSE1, FeatureSSE2,
FeatureSSE3, Feature64Bit]>;
def : Proc<"k6", [FeatureMMX]>;
def : Proc<"k6-2", [FeatureMMX, Feature3DNow]>;
def : Proc<"k6-3", [FeatureMMX, Feature3DNow]>;
def : Proc<"athlon", [FeatureMMX, Feature3DNow, Feature3DNowA]>;
def : Proc<"athlon-tbird", [FeatureMMX, Feature3DNow, Feature3DNowA]>;
def : Proc<"athlon-4", [FeatureMMX, FeatureSSE1, Feature3DNow,
Feature3DNowA]>;
def : Proc<"athlon-xp", [FeatureMMX, FeatureSSE1, Feature3DNow,
Feature3DNowA]>;
def : Proc<"athlon-mp", [FeatureMMX, FeatureSSE1, Feature3DNow,
Feature3DNowA]>;
def : Proc<"k8", [FeatureMMX, FeatureSSE1, FeatureSSE2,
Feature3DNow, Feature3DNowA, Feature64Bit]>;
def : Proc<"opteron", [FeatureMMX, FeatureSSE1, FeatureSSE2,
Feature3DNow, Feature3DNowA, Feature64Bit]>;
def : Proc<"athlon64", [FeatureMMX, FeatureSSE1, FeatureSSE2,
Feature3DNow, Feature3DNowA, Feature64Bit]>;
def : Proc<"athlon-fx", [FeatureMMX, FeatureSSE1, FeatureSSE2,
Feature3DNow, Feature3DNowA, Feature64Bit]>;
def : Proc<"winchip-c6", [FeatureMMX]>;
def : Proc<"winchip2", [FeatureMMX, Feature3DNow]>;
def : Proc<"c3", [FeatureMMX, Feature3DNow]>;
def : Proc<"c3-2", [FeatureMMX, FeatureSSE1]>;
//===----------------------------------------------------------------------===//
// Register File Description
//===----------------------------------------------------------------------===//
include "X86RegisterInfo.td"
//===----------------------------------------------------------------------===//
// Instruction Descriptions
//===----------------------------------------------------------------------===//
include "X86InstrInfo.td"
def X86InstrInfo : InstrInfo {
// Define how we want to layout our TargetSpecific information field... This
// should be kept up-to-date with the fields in the X86InstrInfo.h file.
let TSFlagsFields = ["FormBits",
"hasOpSizePrefix",
"hasAdSizePrefix",
"Prefix",
"hasREX_WPrefix",
"ImmTypeBits",
"FPFormBits",
"Opcode"];
let TSFlagsShifts = [0,
6,
7,
8,
12,
13,
16,
24];
}
// The X86 target supports two different syntaxes for emitting machine code.
// This is controlled by the -x86-asm-syntax={att|intel}
def ATTAsmWriter : AsmWriter {
string AsmWriterClassName = "ATTAsmPrinter";
int Variant = 0;
}
def IntelAsmWriter : AsmWriter {
string AsmWriterClassName = "IntelAsmPrinter";
int Variant = 1;
}
def X86 : Target {
// Information about the instructions...
let InstructionSet = X86InstrInfo;
let AssemblyWriters = [ATTAsmWriter, IntelAsmWriter];
}